Zobrazeno 1 - 10
of 77
pro vyhledávání: '"V N Ojha"'
Publikováno v:
Materials Research Express, Vol 7, Iss 4, p 046302 (2020)
We report the effect of humidity and temperature on the dielectric and impedance properties of lead-free potassium tantalum niobium oxide (KTN). It illustrates large dielectric constant ∼4500 at 1 kHz, low tangent loss in dry condition, which drast
Externí odkaz:
https://doaj.org/article/d7f6da0cc80d458fa3ed4406785fb213
Autor:
Ravikant, Charanjeet Singh, Anjali Panchwanee, Rajib K. Rakshit, Manju Singh, V. R. Reddy, Ram Janay Choudhary, V. N. Ojha, Ashok Kumar
Publikováno v:
AIP Advances, Vol 10, Iss 7, Pp 075206-075206-6 (2020)
We report the growth and polarization switching properties of epitaxial ferroelectric–superconducting heterostructure PbZr0.52Ti0.48O3 (PZT) (100 nm)/YBa2Cu3O7−δ (YBCO) (100 nm) thin films for non-volatile ferroelectric random access memory elem
Externí odkaz:
https://doaj.org/article/cb731e16a7894809aef87a2fe07dce8b
Autor:
Shafaq Kazim, Alka Sharma, Sachin Yadav, Bikash Gajar, Lalit M. Joshi, Monu Mishra, Govind Gupta, Sudhir Husale, Anurag Gupta, Sangeeta Sahoo, V. N. Ojha
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
abstract The elemental Nb is mainly investigated for its eminent superconducting properties. In contrary, we report of a relatively unexplored property, namely, its superior optoelectronic property in reduced dimension. We demonstrate here that nanos
Externí odkaz:
https://doaj.org/article/46ea56580d9a4b019274859df83656c5
Autor:
Monika J. Kulshrestha, R.K. Kotnala, Sunita Raina, S. Swarupa Tripathy, Niranjan Singh, V. N. Ojha, Swati Gupta, Divya Mishra, Rajiv K. Saxena, Nahar Singh, Praveen Kumar Yadav
Publikováno v:
MAPAN. 35:111-115
Breath alcohol analyser is used to detect alcohol content in end-expiratory breaths in order to enforce driving regulations under the influence of alcohol legislation. The accuracy and reliability of the routine measurements of alcohol content perfor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f82fce601c53405bfed8b56439c85a98
https://doi.org/10.1007/s12647-019-00351-7
https://doi.org/10.1007/s12647-019-00351-7
Publikováno v:
MAPAN. 35:87-96
Calibration standards are used for the calibration of a vector network analyzer to characterize the microwave components under test. For the direct characterization of coplanar waveguide components, two-port CPW open, short and line are proposed to c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a804911f58926164bc7d5d6b1c840970
https://doi.org/10.1007/s12647-019-00348-2
https://doi.org/10.1007/s12647-019-00348-2
Publikováno v:
Defence Science Journal. 69:427-430
With the increased use of wireless communication in recent years, the use of reverberation chamber (RC) has increased to a great extent. Reverberation chambers have been eminently used for EMC testing and shielding effectiveness. The environment it p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a2c40facf3ca1060b4d7c86b64a064f
https://doi.org/10.14429/dsj.69.14945
https://doi.org/10.14429/dsj.69.14945
Publikováno v:
Defence Science Journal. 69:423-426
A miniaturised gigahertz transverse electromagnetic (GTEM) cell is designed and fabricated to generate uniform electric (E-) field, essential for studying the radio frequency exposure effect on tissue equivalent liquids at global system for mobile (G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d08fa7c7613b8211863c1a4e34af9df
https://doi.org/10.14429/dsj.69.14944
https://doi.org/10.14429/dsj.69.14944
Autor:
V. N. Ojha, H. S. Rawat, S. Garain, Dushmanta Kara, T. Firdoshi, Ashok K. Mohapatra, Satya Kesh Dubey
Publikováno v:
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science.
In this work, the theoretical and measurement results have been reported of microwave E-field sensing using an atomic spectroscopy instead of conventional methods (using antennae) under practice till date. This method is based on interaction of micro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d603bca18596c417cd39dc2af7e44fe
https://doi.org/10.23919/ursigass49373.2020.9232002
https://doi.org/10.23919/ursigass49373.2020.9232002
Publikováno v:
Measurement. 116:106-113
A 2.4 mm coaxial microcalorimeter system based on thermoelectric principle has been realized as a national standard of microwave power at National Physical Laboratory India (NPLI). The design is based on two symmetrical and thermally isolated transmi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7a047bc0860434765f9abcd0c9c1b89
https://doi.org/10.1016/j.measurement.2017.10.063
https://doi.org/10.1016/j.measurement.2017.10.063
Publikováno v:
Current Science. 121:248
At the national power grid in India, stability is one of the most important factors due to disturbances caused by distributed load and time-variant sources. Presently, for monitoring the transmission efficiency and performance of power grids, phasor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ffd8b219b6639adfc6b4bb6366f77df
https://doi.org/10.18520/cs/v121/i2/248-254
https://doi.org/10.18520/cs/v121/i2/248-254